DC-CDI has a DC-DC converter on board that does not depend on a magneto to produce high voltage to charge the capacitors. The converter provides a stable spark energy throughout the RPM range which is an added advantage over the AC-CDI. Renesas offers both heatsink and heatsink-less reference boards based on the RL78/F12 series MCU.
DC-CDI Heatsink-Less Version
This reference solution operates without a battery. Normal operating voltage ranges are between 6.5V to 16.0V, and has an overvoltage protection up to 350V. The average operating current is less than 1A @ 14.0V and it possesses kick back protection, which means there will be no spark in reverse direction. Unlike conventional DC-CDI solutions, the Renesas solution uses the powerful 16-bit microcontroller RL78/F12 series, and high power and low Rds(on) MOSFETs in the DC-DC converter section, which eliminates the need of heatsinks for the MOSFET, reducing cost and board space.
DC-CDI Heatsink Version
DC-CDI (with heatsink) is also based on our RL78/F12 series of 16-bit microcontrollers with advanced and state-of-the-art peripherals that are very suitable for high-end two wheeler ignition control modules and body control related applications, including quick engine start-up and precision control of spark timings. The RL78/F12 series features noise immunity which is particularly useful in a noise prone application like CDI.
- Stable spark energy kept throughout the RPM range
- Overvoltage and kick back protection available